Update..

roles/common/tasks/basic.yml

@@ -21,6 +21,8 @@
     owner: root
     group: root
     state: link
+  when:
+    - "groups['file_server']|string is search(inventory_hostname)"
   tags:
     - symlink-sh
 
@@ -43,3 +45,28 @@
     - etc_systemd_system_conf.stat.exists == true
   tags:
     - systemd-nofiles
+
+
+- name: (basic.yml) Check file '/etc/security/limits.conf.ORIG' exists
+  stat:
+    path: /etc/security/limits.conf.ORIG
+  register: etc_security_limits_conf_ORIG
+  tags:
+    - limits-conf
+
+- name: (basic.yml) Backup installation version of file '/etc/security/limits.conf'
+  command: cp -a /etc/security/limits.conf /etc/security/limits.conf.ORIG
+  when: etc_security_limits_conf_ORIG.stat.exists == False
+  tags:
+    - limits-conf
+
+- name: (basic.yml) Create new sshd_config from template limits.conf.j2
+  template:
+    src: etc/security/limits.conf.j2
+    dest: /etc/security/limits.conf
+    owner: root
+    group: root
+    mode: 0644
+  tags:
+    - limits-conf
+